Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
29/05/2024, 08:57
General
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Target
2024-05-29_c536a00fe37f5b08d04cdcdc4767d70e_cryptolocker.exe
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Size
39KB
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MD5
c536a00fe37f5b08d04cdcdc4767d70e
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SHA1
144a5c65ca15cc66a39d36cb2afb5cc8ee9690c3
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SHA256
c1237bd2abe071f38dfa84d0eb0026c987fc2caba8888e30a1b58352b8b6fa4a
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SHA512
47faeef8f46c4a5caab3bc92f63019ad1877987511566f131b58276408e9229b16b056fb2a636ddc3aa6d010f2e0859fe16798318b9cdd85271c7e4c66ef5f12
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SSDEEP
768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaBsb:qDdFJy3QMOtEvwDpjjWMl7Td8
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
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Detection of Cryptolocker Samples 5 IoCs
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UPX dump on OEP (original entry point) 5 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 1 IoCs
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UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-29_c536a00fe37f5b08d04cdcdc4767d70e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-29_c536a00fe37f5b08d04cdcdc4767d70e_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
39KB
MD5e77c32dc6bd38a661295ed4c302f9ed9
SHA177c839c9dd4e2ccb01d97eb9ef9117fce8f45b2f
SHA256d80c5f34344fc08364b6d28d20970a39bdea8fa08c8ddf5cf632f4e6d2271f25
SHA512af5ecd1578aa255cff6739b3e1b4a76bf98c9c35ab0d8c4311d903cdefc0434935c217721732955b728b12dc06fd3f5e8317e3fe71d6610f00c406de324f8de8
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB